I'm in the market for a new graphics card for my computer. I do absolutely no gaming, but occasionally watch blu ray movies. I do a ton of photo editing with Lightroom and PS and am looking for a fast card for that purpose. I probably don't want to spend much over $100 as I'm sure I'll be upgrading my entire system within a year to 18 months anyway.

The simpler graphics cards don't draw too much power. You shouldn't have to worry about it. Installing is easy enough. No weird things to watch out for. Ive never fiddled with USB replacement. Those jacks might be tightly integrated with the mother board. They probably weren't designed to be modular like these other components.

Even with an i5, Lightroom handles my 70mb RAW files ok. Loading files and exporting them are the only lags.